Difference Between Cisco GLC-T and GLC-TE

26. october 2017 at 13:40
GLC-T and GLC-TE are all Cisco 1000BASE-T SFP types. And they are used in plenty of networking environment. Both the models have quite a similarity like supporting Auto negotiation, 10/100/100 auto negotiation speed, scalability up to length of 100 m which equals 328 ft in addition to Auto MDI/MDIX feature set. We all know that GLC-T has been announced end of sale and end of life last year. And the new GLC-TE is the replacement for the GLC-T. So what's the difference between them? You may find answer in this post.
From the chart above, we can see that GLC-T works with commercial temperature range (0 to 70℃) while SFP-GLC-TE works in Extended temperature range (-5 to 85℃). In general, non-extended temperature range SFP/SFP+'s are intended to be used within a data centre, or at least indoors - such as between a switch and a server. The extended temperature range units tend to be optics, and are intended to be used with fibre that goes outside of the building (such as between buildings) where there is not a nice temperature controlled environment.

Details for SFP Operating Temperature Range: COM, EXT and IND
Operating temperature range:
  • Commercial temperature range (COM): 0 to 70℃ (32 to 158℉)
  • Extended temperature range (EXT): -5 to 85℃ (23 to 185℉)
  • Industrial temperature range (IND): -40 to 85℃(-40 to 185℉)
  • Storage temperature range: -40 to 85℃(-40 to 185℉)
Migrate to the Cisco 1000BASE-T SFP Replacement Module
End-of-Sale Product Part NumberProduct DescriptionReplacement Product Part NumberReplacement Product Description
GLC-T1000BASE-T SFPGLC-TE1000BASE-T SFP transceiver module for Category 5 copper wire
GLC-T++=1000BASE-T SFP, TAA compliantGLC-TE++=1000BASE-T SFP
Get Hot Cisco Optical Transceivers From FS.COM With Best Price
The Cisco 1 Gbps SFPs are supported across a variety of Cisco networking equipment such as ASA5500 Series Appliances, ASR 901 and 903 Series Routers, Catalyst Express 500 and Express 520, Catalyst 2900, 2940, 2950, 2960, 2960-Plus, 2960-C, 2960-S, 2960-SF, 2960-X Series, Catalyst 3000 and 3100 Blade Switches, Catalyst 3750-E Series, 3750 Metro, 3750-X Series, Catalyst 4500 and 4500-X Series, Cisco 1941 Series Router, Cisco 3200, 3600, 3700 Series Router, Cisco 6400 Universal Access Router, Cisco 2500 Connected Grid Switch Series, Cisco IE3010 Series, Cisco ME 2600X, Cisco ME 3600X and ME 3800X, Cisco MWR 2941 Mobile Wireless Router, Nexus 2000, 3000, 4000, 5000, 7000, 9000, 9300, 9500 (modular) Series and so on.

Since GLC-T was replaced by GLC-TE, GLC-TE modules are re all you'd need for Gigabit Ethernet in most of networks and they cost less as well. Fiberstore (FS.COM) provides all Cisco compatible SFP modules. Every SFP module in FS.COM was tested to ensure 100% compatibility, but only cost a small fraction of name-brand alternatives.

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